Biology, 09.07.2020 07:01 jessicamcummins
A student plans to conduct an experiment to determine how a change in the pH of water affects the populatio growth rate of algae. To ensure that her experimental data are validshe should - Highlight the correct answer A. hold the acidity of the water constant B. vary the temperature of the water used C. control the final algae population sizes D. use the same species in a trials
Answers: 2
Biology, 22.06.2019 10:30
The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere
Answers: 1
Biology, 22.06.2019 16:20
Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.
Answers: 2
Biology, 22.06.2019 16:30
As a result of climate change earths temperature is rising and sea ice is melting what is a likely effect? answer : populations of walruses and polar bears will decline
Answers: 1
A student plans to conduct an experiment to determine how a change in the pH of water affects the po...
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